com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

alfresco.com | 5 days ago
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Root Cause Analysis

  1. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException

    Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

    at sun.reflect.NativeConstructorAccessorImpl.newInstance0()
  2. Java RT
    Constructor.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    4. java.lang.reflect.Constructor.newInstance(Constructor.java:532)
    4 frames
  3. MySQL jdbc
    JDBC4Connection.<init>
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
    2. com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
    3. com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2214)
    4. com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:781)
    5. com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
    5 frames
  4. Java RT
    Constructor.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    4. java.lang.reflect.Constructor.newInstance(Constructor.java:532)
    4 frames
  5. MySQL jdbc
    NonRegisteringDriver.connect
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
    2. com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:352)
    3. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:284)
    3 frames
  6. Commons DBCP
    PoolableConnectionFactory.makeObject
    1. org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
    2. org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
    2 frames
  7. Commons Pool
    GenericObjectPool.borrowObject
    1. org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:974)
    1 frame
  8. Commons DBCP
    BasicDataSource.getConnection
    1. org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:96)
    2. org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
    2 frames
  9. Java RT
    Method.invoke
    1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    4. java.lang.reflect.Method.invoke(Method.java:616)
    4 frames
  10. Spring AOP
    ReflectiveMethodInvocation.proceed
    1. org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
    2. org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
    3. org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    3 frames
  11. org.alfresco.util
    AutoCommitInterceptor.invoke
    1. org.alfresco.util.AutoCommitInterceptor.invoke(AutoCommitInterceptor.java:35)
    1 frame
  12. Spring AOP
    JdkDynamicAopProxy.invoke
    1. org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    2. org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    2 frames
  13. Unknown
    $Proxy70.getConnection
    1. $Proxy70.getConnection(Unknown Source)
    1 frame
  14. Spring Framework
    TransactionAwareDataSourceProxy$TransactionAwareInvocationHandler.invoke
    1. org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:113)
    2. org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy$TransactionAwareInvocationHandler.invoke(TransactionAwareDataSourceProxy.java:213)
    2 frames
  15. Unknown
    $Proxy181.prepareStatement
    1. $Proxy181.prepareStatement(Unknown Source)
    1 frame
  16. com.ibatis.sqlmap
    MappedStatement.executeQueryWithCallback
    1. com.ibatis.sqlmap.engine.execution.SqlExecutor.prepareStatement(SqlExecutor.java:541)
    2. com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:219)
    3. com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.sqlExecuteQuery(MappedStatement.java:221)
    4. com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:189)
    4 frames